CorePrac 9: Further Mechanics: Edexcel A-level Physics

Edexcel A-level Physics lesson on what you need to be able to do for Core Practical 9 - Investigate the relationship between force and change in momentum (specification point 98). Includes experimental set-up, quantities measured, uncertainty calculations, and assessing validity.

[maddybear]

These are SO Helpful, Sir, thanks a bunch for these! You're literally a Godsent for students who self-study!

[batoolalli]

Very helpful video. Thank you for your time and effort

[thecatthatbit]

since little m is the independent variable, would it be preferable to have mT as x and swapping x and y

[ar]

This was very helpful, thank you. Just wondering why the uncertainty wouldn't be 1mm when you are measuring the length of card, as technically you are taking two judgements of 0.5mm when using a ruler to do so?

[williamfang]

the horizontal force act on trolley cannot be mg, because the system is accelerating!

[sabrinaislam]

Thank you for the video. But I have a question-why are we measuring two times, as in T and t using both the light gate and stopwatch? What time is the light gate measuring then?

[chengxu]

very good study materials~when will the rest video be finished?(practical 11-16)

[batoolalli]

quick question: can we plot mv against time instead? from the equation mv = mgT, isnt that more convenient ? then the gradient of the line can give us the accelerating force?

[Opls]

why do we use the length of card to find v?